The table below shows the heights of several books. Jean stacks a dictionary on top of her novel. How night is the stack of books

Hurry and answer this! circle x with a radius of 6 units and circle y with a radius of 2 units are shown which steps would prove the circles similar? translate the circles so they share a common center point, and dilate circle y by a scale factor of 4. translate the circles so the center of one circle rests on the edge of the other circle, and dilate circle y by a scale factor of 4. translate the circles so they share a common center point, and dilate circle y by a scale factor of 3. translate the circles so the center of one circle rests on the edge of the other circle, and dilate circle y by a scale factor of 3

What is the base of 1/9 to the power of 2

Express the following as a function of a single angle. cos(60) cos(-20) - sin(60) sin(-20)